[PATCH 1/2] drm: replace incorrect Compliance/Margin magic numbers with PCI_EXP_LNKCTL2 definitions

[Michel Dänzer]

On 2019-11-11 8:29 p.m., Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas at google.com>
> 
> Add definitions for these PCIe Link Control 2 register fields:
> 
>   Enter Compliance
>   Transmit Margin
> 
> and use them in amdgpu and radeon.
> 
> NOTE: This is a functional change because "7 << 9" was apparently a typo.
> That mask included the high order bit of Transmit Margin, the Enter
> Modified Compliance bit, and the Compliance SOS bit, but I think what
> was intended was the 3-bit Transmit Margin field at bits 9:7.

Can you split out the functional change into a separate patch 1? That
could make things easier for anyone who bisects the functional change
for whatever reason.


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer